385 



into the relation of the Zones throughout the whole of the 

 Jurassic series. We now descend towards the Southern parts 

 of England, the scene of many labours in this particular field 

 of the Cotteswold Naturalists a.nd Geologists. 



For the South coast of England, Mr. Day's paper in the 

 Quarterly Journal Geol. Soc. vol. XIX, the advantage of the 

 accurate sections taken along the coast from Lyme to Charmouth 

 by my friend Mr. Etheeidge, and my own studies along the 

 coast of Dorsetshire, bring out most favourably the true 

 character of the junction beds of the Spinaius Zone with the 

 Communis beds. As an auxiliary to the comparison of the 

 Dorsetshire Sections with the Gloucestershire beds, we would 

 insert the following fine section of the Spinatus Zone as taken 

 at Down Cliff. 



SECTION OF THE SPINATUS ZONE 

 AT DOWN CLIFFS BY TOAD'S COVE, NEAR BRIDPORT HARBOUR. 



